Pumping jack



Jan-

.J. A. EARLEY PUMPING JACK File d Oct. so 1.922

2 Sheets-Sheet L Jan. 29 1924. 1,481,997

J. A. EARLEY PUMPING JACK I gwueutoz 6 JAEarze Patented .lan. 29, 1924.

tastes PATENT 1 ()FFICE.

JAMES A. EARLEY, oraYno-KANsAs.

PUMPING JACK.

Application filed October 30, 1922. Serial No; 597,813.

To all whom it may concern:

Be it known that 1, JAMES A. EARLEY, a citizen of the United States, residing at Tyro, in the county of Montgomery and State of Kansas, have invented certain new and useful Tmproven'ients in Pumping Jacks, of which the following is a specification, reference being had therein to the accompanying drawings. 1

This invention relates to a pumping jack for use in connection with water or oil wells and it has for its object to provide an improved device of this character constructed in such manner that the polish'or pumping rod will not be subjected to any lateral or twisting strain but that upon the contrary the force exerted thereon will always be a straightline movement. This not only results in relieving the pumping rod of undesirable strains which tend to move it out of alinement with the casing but it utilizes the motion ordinarily lost by the ordinary pivoted jack.

It is a further object of the invention to provide a jack of the character described of a nature particularly adapted for usev in connection with a source of power disposed at a more or less distant point.

Further'objects and advantages of the invention will be set forth in the detaileddescription which follows; a

In the accompanying drawings: Fig. 1 is a side elevation of a pumping jack'constructed in accordance with the invention; I a q r i F ig. '2 is a plan viewthereofr Fig. 3 is a horizontal sectional line 33 of Fig. 1;

Figs. 4 and 5 are detail sectional views illustrating thrust lJCttllllgS hereinafter described; and t I Fig. .6 is a vertical sectional view upon line 6-6 of Fig.1. 1 a a i Like numerals designate corresponding parts throughout the several figures of the drawings.

In th view upon 4 drawings 5 and 6 designate longitudinally extending sills, 7 a cross bar, 8 the'casing head and 9 the polish or pump rod. These parts are all of the usual and well known construction and need no further description; 1 Power is imparted to the pumping jack through a rod or cable 10 which is'connected to a yoke 11 and which yoke, in turn, engages in any desired one of the notches 12 of a clevis 13. This clevis is carried by a pull rod post 14 "and this pull rod post is suitably braced by a'brace bolt 15 and brace rods 16, 1' and 18 from a main beam 19 which comprises spaced channeloo lIOIlS 19 and 19 Mounted between these spaced channel irons which constitute the beam 19is a rear bearing block 20 an intermediate beal'ing block 21 and a front bearing block 22. The intermediate bearing 5 block 21 carries an'elo'ngated circular rib 23 upon its lowerface which bears in a concave recess formed in theupper face of a bearing plate 24. This bearing plate is slidably mounted upon ribs 25 of a lower bearing plate 26,said lower bearing plate being'carried by the sills 5 and 6. Adjusting screw 27 pass through an upstanding edge 26' of the lower bearing plate 26 and engage bearing plate 24 to adjustit upon plate 26 and thus to accurately position it with respect to therib 23. The upper face of the front bearing block 22 has a concave recess formed therein which receives an elongated rib 28 carried by a bearing head 29 upon the lower end of a front pitman 30. The upper end of this pitman is vprovided with a cup-like bearing head 31 which receives a rounded head 32of a: bearing plate 33, the latter being carried by anupper $8 beam 34 consisting of spaced channel irons. 34v and 34 The front end of the beam 34 carries a bearing block 35 having concave recesses 36 formed therein which receive v trunnion like elements 37 of a collar38, which is carried by pump rod 9.- The rear end of the upper beam 34 carries a cup plate 39 which is shaped to receive a rounded rib 40 formed upon an upper, bearing plate 41. Rods 42 complementally constituting a yoke pass through extensions of the plate 41' and have nuts 43 upon their upper ends. The lower ends of these rods pass through a lower bearing plate 44 which is cupped to receive a rounded rib 45 formed upon a bearing plate 46, said bearing plate 46 being a in turn secured in position between channel irons 4" and 47 which constitute an intermediate beam 47. The intermediatebeam 47 carries upon its upper face intermediate its ends, a bearing plate 48having a recessed portion which engages with arounded rib 49 formed upon the lowerside of a bracket 50, which bracketis secured in position between fixed, vertical channel irons 51, the lower ends of which are supported fromthe sills 5 and 6. The braclazet has an eXtcnsion 52 projecting forwardly, therefrom which supports? a vertical guide rod-i553; This guide rod is braced by a brace rod 54: from a rear extension 55 of the bracket 50. A guide iron 56 projects 'fro1n"the"rear end of the upper beam 34 and its rear endslid isyprovided twith'abearin 'ilead 1-62 having a rounded lower rib 563' which iengages in L a 1 cup-like. uppersur-face of the .bearingplate movement; this: ibeam' is '1 -n'ec'ted that nearly all ofithe eneshown )1 nu-medtately draws" the rc 20:1at thea'ear end aoi': thew-11min beam llfhv Thus When 'iithe :rod 510 isv pulled uupon, =the pnll rod post it isrocked toward tl alefhin Fig-i1 and this", in turn, rockszthe beamilil upon its pivot 23 and thrust npwardlyn u 'mn'thez p-itmanflOl This in:turnrthmstsilthe -upper beanr'34 upwardlyand during itsI upWard aintaincd in I a substantially horizontal posititm due to ftl' i factrthat whilethe upward thrust of the. pi man 3( tendstov-lift the rear end of beam =34 as Well aSCt-hefmnt end thereof, the ear end cannot-rise any fasterthan ll?lS-PQiID lttBTldZO do by the yokes constituted by. rods: 42 Y which are, in turn," restrained by'theam ovement of beam- 47 the front encl of which beam can ,onlymove upwardly as the rear endmt themain beam 19 moves;downwardly;'

In other Words-the parts are sointercon- Nutr-v lize'din inipartinga direct'striai V iii-temp Ward thrust to the pump rod 9, the beam 34 being maintained 3 in a horizontal position i throughout its up and down movem limit of: movement andthe rod or cabl'e lfl" is= slaclren e l in the usual'iway,th vweight or the pi rod and pump plunge not wardly and mow the partsin the c r direction and it willbe=obseiwed-thatthe: thrust oi'all oi-the part'sis such as to maintain-"theseveral beari-u elements. in engage-Y ment with each other; In other words while these=bearing-elementsmerely i'est'npoireacli 1 doi ithework: required with -a minimum of 2 wear .upon :the parts;

Itis tobeunderstood that the invention isanot-limited .to the precise construction set fo'i'tli but that it includes withintits purview Whatever changes fairly come Within either the terms or the spiril'f of the appended claims.

Having described my invention What I claim is: o 1. In combination a vertically disposed pump rod, a main beam, an intermediate beam and an upper beam, a connection between one end of the upper bea-mandwthe pump rod, a connection between the rear end oit' rthe upper beam andthe intermediate beam, a connection between the rear end of the intermediate beam and the rear end of the niain'beani and a connection between the front end of the lnain beam and'tthe intermediate part of the upper beam.

2. In combination a main beam, means for supporting saidmain'beanito rock, a vertical-1y disposed pumparod, an upper beam and an intermediate beam, a rocking bearing between thepumprod and one-end of-the upper beam, a yoke connecting the rear end of the upper beam with the frontend'of the intermediate beam and having :rockingengagementwith both of. them, a pitman'connesting the front nd of the main beam- With an intermediate part oft-he upperibeamwand having rocking engagement with both :of them, a pitman connectingthe rear 'end of the intermediate beam and therear'end of-the lower beam and having mocking: engage-men t with both ofthem, andmeansfor imparting rockingmovement to the: main beam. 3. A device of the character describedcomprising a supporting J base; 1 ,a E bearing i an upstanding;,-guide vrod carried b-y sa'id fixed members, an upper beam, a guide iron carried by the/upper beam landlenga ging .'ai:tl 'gui'tle rod, =a vertically disposed pnmp rod, a rocking bearing between 'lheiront portion an' d 'the upperbeai n @an'd'said pump rod, a pitmanzextend in-g between the -in ter- Inediate'portion of the upper beam antithefront end of the 'm-ainilbeam and having rocking engagement with both fioi themp-a connecting link extending between the rear end of. the upper beam: and the w front i end'of the intermediate beam and havingtrocking:

engagementi'with each oi them, a pitrnan extendingbetween the: rear end ot the inter mediate beam and the rear enduofthe main beam and having .lrockmg, engagement" with each. of them, and a pull-rod post 'earried by the main beam and suitablybraced there from. o

In #testimony avhe-reofl hereunto affiX m-y signature 7 JAMES A. EARLEY, V 

